Re: The four P's: Prior Planning Prevents Poor Performance!
There's a huge learning curve and mistakes can result in loss of the bees, A mentor and be club are invaluable.
And there is lots of choices/decisions to make. I'd recommend buying your supers and frames and foundation. They can be made if you have good saws and cabinet making skills. They are not a huge premium in price if you elect to assemble them your self. Bases, bottom boards, inner covers, outer covers or migratory covers are relatively easy to build your self.
If you have a good back and are fit, I suggest going with three deep ten frame supers. Two for brood and one deep honey super. It gives great flexibility to move frames up and down as you manage the brood and winter stores.
I'd then suggest three medium honey supers above that. They are lighter to work with.
Likely at most you'd need one of the three medium honey supers the first year. Feed lots of 1:1 sugar syrup until the two deep broods are mostly drawn and you'll be surprised at the population and potential honey the first year. Harvested 50 lbs the first year and think it would have been a 100 lbs, if mismanagement didn't result in swarming.
This configuration allows you to experience bees and super sizes and you can then decide what your preference is for long term.
If you always do what you always did, you'll always get what you always got!